klaar



A. KLAAR Nov. 22, 1938.

BLOCKING DEVICE FOR CASH REGISTERS, BOOKKEEPING MACHINES, OR THE LIKEFiled Jan 50, 1936 7 Sheets-Sheet l Nov. 22, 1938.

A. KLAAR BLOCKING DEVICE FOR CASH REGISTERS, BOOKKEEPING MACHINES, ORTHE LIKE Filed Jan. 50, 1956 7 Sheets-Sheet 2 Nov. 22, 1938. A. KLAAR I2,137,845

BLOCKING DEVICE FOR CASH REGISTERS, BOOKKEEPING MACHINES, OR THE LIKEFiled Jan. 50, 1956 7 Sheets-Sheet 3 A. KLAAR 2,137,845

BLOCKING DEVICE FOR CASH REGISTERS, BOOKKEEPING MACHINES, OR THE LIKENov. 22, 1938.

Filed Jar 50, 1956 '7 Sheets-Sheet 4 A. KLAAR 2,137,845 BLOCKING DEVICEFOR CASH REGISTERS, BOOKKEEPING MACHINES, OR THE LIKE 7 Sheets-Sheet 5Nov. 22, 1938.

A. KLAAR BLOCKING DEVICE FOR CASH REGISTERS, BOOKKEEPING MACHINES, ORTHE LIKE Filed Jan. 30, 1936 7 Sheets-Sheet 6 Eli li a:

A. KLAAR Nov. 22, 1938.

BLOCKING DEVICE FOR CASH REGISTERS, BOOKKEEPING MA EINEs, OR THE LIKEFiled Jan; 50, 1936 '7 Sheets-Sheet '7 Patented Nov. 22, 1938 UNITEDSTATES PAT OFFICE Application January 30, 1936; Serial No. 61,586 InGermany February-20,- 1935 14 Claims.

This invention relates to a blocking device for cash registers;bookkeeping machines or the like. There areknown cash registers whichhave a plurality of adding totalizers and a special or mas-' tertotalizer, the adding totalizers being arranged in groups, for instanceaccording to class of tax and form of payment. the totalsare taken fromthese adding totalizers one group at a time and simultaneously the totallll of each adding totalizer is transmitted to the master totalizer. Bycomparing the two group totals formed successively in the mastertotalizer a proofof the correctness of the accounting is afforded.Patent 2,057,438 is an example of such li machines.

Withthese known machines, the operator is free to take the totals fromall of the totalizers of a group; or-from only a part of them, or evento transmit totals from totalizers of both groups togetherto themaster'totalizer, so that a correct operation of the machine to checkthe accuracy of the accounting is-not assured. This disadvantage isremoved by the blocking device according to the presentinvention, whichforces the operator to'take the totals from all the totalizers of onegroup in succession and simultaneously to accumulatethem in the mastertotalizer; then, before anyotheropera-tion can be performed on themachine, to take the total from the master total- 3052 izer and cause'itto be printed. When the taking of totals from'another group of addingtotalizers is begun, the operator is again forced to continue throughall totalizers of the second group as before, accumulating the totals inthe master totalizer and finally taking the total therefrom.

An illustrative form of the invention is show in the drawings, whereinFig. 1 is a diagrammatic view of the whole setting board,

Fig. 2 is a vertical section of a part of the setting and blockingmechanism on the line 2-2 of Fig. 1,

Fig. 3 is a vertical section of a part of the setting andblockingmechanism on the line 3-3 of Fig. 1,

Fig. 4 is a vertical section similar to Fig. 3 on a line slightlydisplaced from that of Fig. 3,

Fig. dis a vertical section of part of the setting mechanism, on theline 5-5 of Fig. 1,

Fig. 6 isa vertical section of part of the setting and blockingmechanism, on a line slightly displaced from the line 22 of Fig. 1,

Fig. 7 isa vertical section on the line 1-1 of Fig. 1, showing theamount setting, differential, 55* and totalizer'mechanisms,

At the close of business Fig; 8is a vertical section onthe' line 88 ofFig; 1, showing" the setting mechanism for selecting the" totalizers andappurtenant differential mechanism,

Fig. 9-is a'fragmen-tary front elevation partly f in section of 'oneofthe adding totalizers and the master totalizer;

Fig. 10 is a section along the main axis of the totalizer selectingdifferentialmechanism,

Fig. 11 is-a'vertical'sectionon the line II--Il of Fig. 1 showingthe-setting mechanism for determiningthe time of engagement'of theadding totalizers,

Fig." 12 is a' vertical sectional view on the line l-2'-l'2-'"of Fig. 1and -Fi'gs.- 13,-14 and 15 are detailside views of the levers forselecting the adding totalizers and fonsettingthemachinetotake the totalfrom the master totalizer; showing the blocking mechanism-betwe'en them.

The machineis provided'with two groups of adding totalizers l and II(Figs. 7 and 8), for instance for class-of tax andform of payment,respectively; there-being nine totalizers in each group; and: also withamaster totalizer in a separate group I III. There are several rows ofamount-keys I0 (Fig: 1-); two rows of adding totalizer-selector keysI02,.two adding totalizer selector leversA for selecting the addingtotalizers 'in totaltaking; threemotor release keys IBI (M $11.; 802;: acontrollever S u for the setting, Resetting master. totalizerand acontrol lever Gforr the setting, Resetting adding totalizers.

Totali zer control Thetwogroupsof adding totalizers, I and II, (Fig. 8are'controlledrespectively by the two rows ofadding totalizer'selectorkeys I02. Each groupof totalizers contains nine individual totalizers,group I being controlled by the selector keys-l' -9 forthe-class of tax,and group II by the keys'for the form of payment. In each group ofadding totalizers, the counting wheels 60 (Figs. 7 and 9) of the nineadding totalizers are arrangedside' by" side'on a shaft 6|, the unitscounting-wheels 60 0f all the totalizers being in one group, the tens'totalizers in a second group, and so" forth. The adding wheels arerotatably mountedupori the hub 63 1 of I an actuating wheel 65 (Fi'gs-;8and' 9) the latter wheel being engaged, by swinging of 'thegroup ofadding totalizers, with an intermediate wheel-36*meshing with a pinion31; which engages adifierential driving wheel 38 common to thesame'order of all the totalizers.

'I'heactuatlng wheels can be connected to the counting wheels 60 of oneof the nine adding totalizers of the group by means of couplings 66(Fig. 9), which are rotatably but non-shiftably mounted upon shaft 6|and have noses which project through longitudinal slots 64 in the hubs63 and come into engagement with the inner teeth 61 of the countingwheels 60. The couplings 66 are moved into engagement with the countingwheels to be selected by axial displacement of the shaft 6|.

The displacement of the shaft 6| is executed by a stepped-cam drum I I9(Fig. 10) in the cam slot I2I of which engages a roller I24 mounted upona sliding sleeve I23. The sleeve I23 is connected to a plate I26, whichengages an annular groove in the shaft 6I in such a way that the latteris forced to follow the lateral movement of the plate I26, without beinghindered in taking part in the swinging of the totalizer group intoengagement, around the shaft 12 (Figs. 8 and 9).

The rotation of the drum I I9 for selection of an adding totalizer iseffected, in amount setting operations, by the driving mechanism of themachine, according to the setting of one of the keys I02 (Fig. 1) of thecorresponding key bank. On total taking operations, the drum H9 is adjusted directly by hand by means of the appurtenant lever A.

The adding totalizer selector keys I 02 are arranged in known manner,like the amount keys I!) and motor keys I6I, concentrically to a shaftII (Fig. 8) upon which the main differential member I03 and theauxiliary differential member I04 are mounted. The members I03 and 104are connected by means of a bevel wheel differential gear I01, I08, I09(Figs. 8 and 10), mounted upon the shaft 22 (Fig. 8), in such a way thatby rotation of the shaft 22, upon which the bevel pinion I09 is rigidlymounted, the differential members are made to engage the foot of thedepressed key shaft I02 (Fig. 8) scissors-fashion, and by returnrotation of shaft 22 they are restored. In this movement they engagebetween them a pin II2 (Figs. 8 and 10) of a setting member IIO for thedisplay and type wheels, loosely mounted on shaft II, and position thisin accordance with the depressed key I02. The setting member H isrigidly connected by a hub II4 (Fig. 10) with a segment II3 (Figs. 8 and10). The latter engages at the top by teeth I48 (Fig. 8) with a pinionI41 rotatably mounted upon a shaft I46. At the bottom the setting memberhas additional teeth engaging a gear I I5 mounted upon shaft 22.

The gear H5 is connected by a hub II6 (Fig. with a toothed segment H1,which meshes with teeth I I8 on the cam drum I I 9 of the correspondinggroup of adding totalizers. As a result of this arrangement, therotation of shaft 22 which occurs during the machine operation, sets thedrum H9 in accordance with the depressed key of the key bank I02, movingthe coupling 6| laterally and connecting the actuating wheels 65 (Fig.9) with the adding wheels corresponding to the depressed key I02.

The levers A1 and A2 loosely mounted on shaft II (Fig. 8) are providedat the rear with teeth I45, which cooperate with the pinion I41. In theposition of rest of lever A, the segment of teeth I45 is out ofengagement with the pinion I41, but as soon as the lever is moved fromthis position, the teeth I45 engage the pinion I41 and turn the latter,as well as the cam drum I I9 positively connected therewith, inaccordance with the key l02 beside which the lever A is set.

The amounts set by the amount keys I0 (Figs.

1 and '7) are transmitted through the amount differential member to thedriving wheels 38 (Fig. 7). The amount differential mechanism isconstructed like the differential mechanism of the adding totalizerselector key banks I02 just described. It comprises a main differentialmember I2 mounted upon shaft II and an auxiliary differential member I4,which are connected together by means of a differential gear 24, 26, 25mounted upon shaft 22 in such a way that the differential members I2, I4are caused by rotation of shaft 22 to engage the foot of the depressedkey scissors-fashion. In this movement they set the setting member 41connected to the display and type wheels (Fig. '1), by means of a pin48, in a position corresponding to depressed key I0. Bevel wheels 24 ofthe differential gear, which are rigidly connected by segments I1 withthe main differential members I2, are positively connected to drivingWheels 38 common to all totalizer groups, so that the driving wheels 38are set at each machine operation in accordance with the depressed keyI0. In total taking the differential members operate in the manner shownin German Patent No. 569,493. The auxiliary differential member I4 isheld by stop lever 32I at the beginning of the total taking operation,while the main differential member I2 moves for an extent determined bythe position of the totalizer wheel with which the differential memberis connected; then when the totalizer wheel reaches zero the stop lever32I is thrown out of blocking position, while the main differentialmember I2 is blocked, thus causing the auxiliary differential member I4to absorb the final movement of the driving mechanism. The blockingmember 32I is normally held out of blocking position by cam 322 on shaft230, but is rocked into blocking position by a spring (not shown) whencam 322 is turned by the setting of either lever Su or G. Furtherdetails of the operation of this mechanism will be found in theaforesaid German patent.

The engagement of actuating wheels 65 (Fig. '1) with the intermediatewheels 36 is brought about by rocking of shaft 12, to which thetotalizer frame 35 is rigidly fastened. For this purpose a fixed arm(Figs. 8 and 10) on shaft 12 embraces, by means of two rollers 16, aneccentric 11 fixed to a shaft 14. The two shafts 14 of the two addingtotalizer groups I and II are connected by wheels 18 (Fig, 10) to acommon wheel 19, which is fixed to a sliding sleeve 8| mounted uponshaft 22. The sleeve SI carries driving and locking teeth 82, 83 (Figs.10 and 11). The driving teeth 82 cooperate with three driving discs8189, each having two pairs of driving teeth IN. The locking teeth 83coact with correspondingly selected locking discs 84-86, in the mannerof a Maltese drive. The locking and driving discs 8489 are rigidly fixedto shaft I I. The lever G on shaft II (Figs. 10 and 11) is rigidlyconnected to a stepped segment 91, in the stepped cam slot 96 whichengages a roller 95. The bearing pin of this roller is rotatably butnon-displaceably connected to sleeve 8 I. Through this mechanism thesleeve can be so adjusted by lever G that the teeth 82 and 63 come intothe plane of any desired one of the three pairs of rocking and drivingdiscs 84-89. During the machine operation, in

which the shaft I I executes a single rotation, the

shaft 14 (Fig. 10) receives through the driving and rocking discs 84-85to which the teeth 82, 83 are adjusted, a single revolution in two partsof 180 each, which operates in such a way through eccentric 11 upon theadding totalizer groups I and II (Fig. 8) that the latter are engaged bythe first part of the movement and disengaged by the second part. Thepart movements occur'at different times, according to which pair ofdriving and locking discs 8489 (Fig. 10) is in engagement with the teeth82; 83.

In the position of rest of the lever G (Figs. 10 and 11) the time ofengagement and disengagement of the adding totalizer groups isdetermined by the discs 84, BI for the operation Adding; in the positionReading off by the discs 85, 88 for the operation Sub-total taking; andin the position Re-setting by the discs 86, 89 for the operation Finaltotal taking. "Consequently, in the first case (Adding) the engagementof the adding totalizers occurs before the beginning of the rcturnmovement of the differential driving members 38 (Fig. 8) thedisengagement at the end of the return movement. In the second case,(Reading off) the engagement occurs before the beginning of the forwardmovement of the driving Wheels 38 and the disengagement after theend ofthe return movement of the same. Inthe third case (Re-setting) theengagement occurs before the beginning of the forward movement of thedriving wheels 38 and the disengagement after the end of the forwardmovement. In adding the amount set by the amount keys II] is transmittedto the adding totalizer selected by the totalizer selector keys I02. Inreading off the total contained in the adding totalizer selected by thelever A is transmitted to the display and printing mech anism, and thecounting wheels are then returned to the position which they had beforethe beginning of the Reading off operation. In Re-setting the countingwheels remain in the Zero position after the amount which they containedis transmitted to the display and printing mechanism.

The master totalizer is located in the part of the machine designatedIII (Fig. 8). The construction is similar to that of the adding totalizer groups I, II; however, instead of nine adding wheels there isprovided in each order only a single counting wheel I15 (Fig. 9), whichcan be connected through a coupling I16, with the actuating Wheel I18cooperating with the appurtenant intermediate wheel 36, by displacementof the coupling shaft Ill. The displacement of the coupling shaft forthe purpose of engaging and disengaging the master totalizer is effectedby means of a special stepped-cam drum I79 (Figs. 9 and 10), which isconnected by a roller I8I (Fig. '8), a sliding sleeve I82, and a plateI83, with the coupling shaft I'II, similarly to the way the stepped drumI I9 is connected with the coupling shaft 6|. The drum I79 (Figs. 9 and10) is mounted upon a shaft I84 and stands in constant engagement withdisc I89 through the intermediary of a ring of teeth I85 (Fig. 10) asegment I81 mounted on shaft 22, and a pinion I88 connected thereto. Thedisc I89 is rigidly connected by a hub I9I with the setting member I92of the motor key bank I6 I.

The differential mechanism of the motor key bank IGI is constructed inthe same fashion as the amount differential mechanism. The twodifferential members I93 and I94 (Fig. 10), which are interconnected bya differential gear I95, I96, I91, are brought up against the foot ofthe de pressed motor key I5! from both sides by rocking of the shaft 22;thereby positioning the setting member I92, with the display andprinting members connected therewith, in accordance with the displacedmotor key. The stepped cam slot I98 of the drum I19 is so shaped, thatthe setting of the setting member I92 tothe key M (Fig. 1) holds themaster totalizer disengaged, while setting it to the keys Su and Sir:causes the master totalizer to be engaged. The determination of the timeof engagement of the masteritotalizer is effected by special locking anddriving means fill-e284 (Fig. 10), fastened to shaft II, which cooperatein the manner of a Maltese drive with locking anddriving teeth 285, 286of a sliding bush 208 rigidly connected with a toothed wheel Eel. Thewheel 29'! meshes with a toothed wheel fixed to the shaft I84. The shaftI34 carries on its other end an eccentric 2 (Fig. 8) which coacts withtwo rollers 2I2 of an'arm 2I3 fixed on the rock shaft 2I4 ofthe frame 2I5 of the master totalizer. The sliding sleeve 208 (Fig. 10) isconnected through a roller 2I6 with a cam segment ZI'i rotatably mountedon shaft I I, to which segment is rigidly fastened the lever Su, whichsets the time of engagement of the master totalizer. This control of thetime of engagement works in a similar way to that for the addingtotalizers. In the position of rest of the lever Su the teeth 295, 206cooperate with the discs 29!, 299 for adding, so that the amount bywhich the amountdifferential driving wheels 38 are moved under thecontrol of keys I0,-or by the taking of a total from one of theindividual adding totalizers. is additively transmitted to the mastertotalizer; pro vided, that the drum H9 is set to Engagement. In theposition Re-setting of the lever the teeth 285, 296 cooperate with thediscs 292, for taking the final total, whereupon the amount contained inthe master totalizer is transmitted to the display and printingmechanism and the master totalizer is set to zero.

The adjustment of the master totalizer to the operation Total taking isaccomplished, as described, by setting the lever Su, to Re-setting. Inorder to couple the counting wheels I'I5 (Fig. 9) of the master.totalizer with the appurtenant actuating wheels I18 before the beginningof the machine operation, there is provided on the lever Su a pin 349(Fig. 5), which projects into a slot 35! of a disc I89 fixed to thesetting member I92 (Figs. 5 and 10) of the motor key bank IGI. The slot35I does not interfere with the setting of the setting member accordingto the displaced motor key, when the lever Su is in its position ofrest.

On the other hand, if the latter is adjusted to the Blocking mechanismEach totalizer selector lever A (Figs. 1 3 carries a pawl 4I2 rotatablymounted on 409' and provided with projections 4i!) and i pin M3 on thepawl cooperates with a curve bar 4I5 rockably mounted upon a shaft II-i. T pawl 4 I 2 is under the influence of a tension spring M6. The rackbar 4I5 has an arm provided with a roller 4I8 held by -a spring H9 incontact with a cam disc 42I fixed upon a shaft 4252, which executes onerevolution in each machine operation.

On a shaft I46 is loosely mounted a lever 923 which rests against a pin424 on totalizzctor lever A by the pull of the spring 4I9. An 525 oflever 423 carries a pin 426 against which lies a lever 428 under thepull of a spring 421. The lever 428 is rigidly fixed to shaft I46 andcarries a pin 429 which. cooperates with a projection 439 on the rackbar M5. The upper end of lever 428 is moved, in a manner describedlater, into the path of a cam 43I fixed upon the shaft 420. Upon shaftI46 is rigidly fastened an arm 432 (Fig. 2), in which is riveted a pin433. A lever 435 comes to rest against the pin 433 under the pull of aspring 434. The upper end'436 of lever 435 cooperates with a pin 431 ona locking slide 438. A pawl 439 under the influence of a weak springholds the locking slide 438 in either of its two positions. The keys I6Iare provided with pins I12, which are adapted to cooperate with thelooking slide 438. Upon the shaft M4 is loosely mounted a second rackbar 444 (Fig. 4) under the influence of a tension spring 443. A roller445 on lever 444 rests against a cam disc 446 fixed to shaft 420. Thenotches of rack bar 444 are somewhat displaced with reference to thoseof rack bar 4I5.

Between the setting means I 0, I02, A1, A2, I6I Su, G, there may beprovided blocking means, such as shown in Patent 2,057,438, whichprevent the totalizer selector levers A1 and A2. the release key Sr andthe control levers Su and G from being set when an amount key I has beendepressed. These locking means further prevent the setting of more thanone of the totalizer selector levers A during total taking from thetotalizers I9 and EO, and also look the keys I0, I02, M and SIB, as wellas the control lever Su at this time. The mechanism for performing thelatter functions will now be described.

Referring to Figs. 13, 14, and 15, there is mounted behind the leversA1, A2, and Su, a shaft 38I, which is constantly urged by a spring (notshown) in counterclockwise direction. Upon this shaft there is a rockingsleeve 383, provided, in the plane of the selecting lever A1, with afixed arm 384. In the position of rest of the lever A1 a notch 389stands opposite the arm 384, so that the latter can swing inward toengage the notch, when the lever A1 is in position of rest, while acircular periphery 39I of the lever A1 prevents the arm 384 fromswinging in when the lever is in any other position. Upon the oppositeend of sleeve 383, in the plane of lever A2. is a pawl 386, to which isconnected a tension spring 381 normally holding the pawl 386 in theposition shown in Fig. 14. In the position of rest of selecting lever A2an abutment 385 stands with its upper edge 388 under the nose of pawl386. When the selecting lever A2 is moved out of its position of rest,the pawl 386 is pushed in clockwise direction and swings the arm 384into notch 389 in lever A1, thereby locking the latter in the positionof rest. If the lever A1 is out of position of rest, the lever A2 isprevented from moving, by pawl 386.

Fixed to shaft 38I in the plane of lever Su is a pawl 398. The nose ofpawl 398 engages the upper surface 399 of an abutment 40I fixed to leverSu. In the plane of lever A2 there is fixed to the shaft '38I an arm402, which stands opposite a notch 403 when the lever is in position ofrest. There is also fixed to shaft 38I in the range of the lever A1 anarm 405 having a bent over end which lies against the arm 384. Theabove-mentioned spring (not shown) holds the shaft 38I in the positionshown in Figs. 13-15, wherein the pawl 398 engages the abutment surface399. When the lever Su is moved out of position of rest, the pawl 398 ismoved clockwise and throws arms 402 and 384 into notches 403 and 389respectively, thereby locking levers A1 and A2 in position of rest. Ifeither of the levers A1 or A2 is not in position of rest, the lever Suis prevented from moving by the pawl 398.

In the range of each bank of amount keys I0 (Fig. '1) there is provideda blocking slide 3I5, provided with inclined slots in its upper surfaceand connected at its upper end by a pin 320 with a zero stop pawl 20.This pawl has a downwardly extending hook engaging the nose of segmentl1 fixed to the main differential member I2. When a key I0 is depressed,the slide 3I5 is cammed upward by engagement of its pin I12 with theside of the corresponding slot, whereas, if the zero stop pawl 20 isswung clockwise by means to be described presently, no key I0 can bedisplaced, because the oblique slots of slide 3I5 are moved out ofalignment with the pins I12.

In the range of the adding totalizer selector keys I02 (Fig. 8) there isprovided a similar slotted slide 3I5 connected at 320 to a zero stoppawl I61. The zero stop pawls 20 and I61 are each provided withrearwardly projecting tails 3l3 upon which bear the forwardly projectingnoses of levers 3| 2 pivoted at 3. The rearwardly extending arms oflevers 3I2 bear against cam discs 306, 301, 308 fixed upon a shaft 230.Between the levers Su and G there is fixed to shaft 230 (Fig. 10) a stubshaft 300 bearing a planet wheel 305 cooperating with sun wheels 296 and304 of a differential gear. The gear 296 is fixed to a hub 295 rotatablymounted on shaft 230, the opposite end of which bears a gear 294 meshingwith a gear 293 rotatably mounted on shaft I46. Fixed to gear 293 is apinion 292, which cooperates with a set of teeth 289 on lever Su (Fig.5). When the lever Su is moved down to the position Re-set ting, thepinion 292 is engaged by teeth 289 and rotated, thereby rocking theplanet wheel 305 and turning shaft 230. The cams 306, 301, and 308 arethereby turned into a position which swings the pawls 3I2counter-clockwise (Figs. 7 and 8) and, through the zero stop pawls 20and I61, moves slides 3I5 up to a position which blocks the keys I0 andI02. A similar adjustment is effected by movement of the lever G,through a set of teeth 291 (Fig. 10) on that lever engaging a pinion299, a toothed wheel 30I fixed to the pinion, a toothed wheel 302meshing with wheel 30 I, a rotary hub 303 fixed to wheel 302, and thesun wheel 304 connected to the hub.

The pinion 292 is connected by a sleeve 315 (Fig. 6) with a cam 369. Thecam 369 acts through a lever 361 to move downward a slide 353 held up byspring 365 and having slots 314, 313, 312 so related to pins I12 on theshafts of motor keys I6I that in the bottom position of the slide thekey Sac is free to move, while the keys M and Su are blocked; whereas,in the upper position of slide 353 the key Sac is blocked and the keys Mand 811. are free.

Pinion 299 (Fig. 10) is connected by a sleeve 282 rotatably mounted onshaft I46 with a cam 31I (Fig. 6). This cam acts through a lever 368against a slide 354 normally held in upper posi tion by a spring (notshown) similar to spring 365. The slide 354 has blocking surfacesinterrupted by slots 318, 311, and 316. Between the latter two slots isa blocking surface 319. In the position of rest of the key G, whichcontrols the slide 354 through the mechanism just described, both thekeys M and Su are released. Slide 354 has no blocking surface for keySac. In the position Reading off the key M is released while the key Suis blocked by the surface 319. In the position Re-setting the key M isblocked and the key Su is released by slot 311.

The device described operatesin the following manner:

For registering an individual amount, the amount keys Ill are firstdepressed, then one'key in each of the groups l!! and EO, whereupon bydepression of the release key M, the machine operation is started.However, if a taxpayer pays in several taxes, instead of the release keyM, the release key Su is operated, for in this case the total payment ofthe taxpayer is to be registered, which is done by the master totalizer,and this is thrown in by depression of the release key Su. The totalformed in the master totalizer is taken by pulling the control lever Suinto the position Re-setting and punching the motor key Sr.

When the correctness of. the accounting is to be determined at the closeof the business period, at which time the totalizers of the groups I.and II are to be zeroized, first the control lever G is moved into theposition Re-setting? and the totalizer selector lever A which controlsthe totalizers |9 is moved from its normal position into the position I.A movement to any other position than the position I is impossiblebecause the pawl 412, by means of its projections 4H] and 4| l, incooperation with. the notches of the rack bar 4l5, permits a movement ofthe totalizer selector lever A for only one division. Movement of leverG to position Re-setting blocks motor key M by slide 354 and releaseskey S16, while key Sr remains blocked by slide 353. The lever Su is heldin position of rest by pawl 398. The keys l and I42 are blocked by theirslides 3I5. By depression of the release key Su, the master totalizer isengaged and at the same time the machine'operation is started, so thatthe total withdrawn from the totalizer is positively transferred to themaster totalizer.

Shortly before the end of the machine operation, the disc 42! turns therack bar clockwise and thereby releases the pin M3 of pawl. 4 l2, whichfirst is swung by the pull of spring 4l6 only to the somewhat displacedfirst notch of rack bar 444, but which immediately after the pin 445 hasleft the notch of disc 446 moves further until its projection 4!! comesagainst the lever A1. The rack bar 4H5 going back under the pull ofspring 459 embraces the pin MS of pawl M2 in its second notch. Thenotches of lever 444' consequently prevent the lever A1 from beingpulled through during the machine operation at the moment when the rackbar M5 is raised, because the roller 445 moves into the notch of thedisc 445 under the action of spring 443.

On the. passage of the lever A1 from the position 8 to the position 9.the pin 424 of lever A] engages a nose 4230: of lever 423 and moves thelever 423 by means of pin 426 into the path of cam 43! and at the sametime moves the pin 425! against the projection 43!). In the course ofthe machine operation, cam 43! engages lever 428 and pin 429 swings therack bar M5 in clockwise direction. The rack. bar 415 is prevented fromreturning to its original position until the following machineoperation, because as Fig. 3 shows, the lever 42%! stands in front ofcam 43!, (dotted position). By turning. of the lever 42counter-clockwise, the shaft I46 is also turned and takes with it thearm 432 (Fig. 2), which latter brings the upper end 436 of lever 435into contact with pin 43?, through the action of a 434. However, amotion of the locking slide 438 cannot follow, for the release key Su isonly released shortly before the end of the machine operation, in theusual manner. At that time the locking slide 438 is pulled upward by theaction of the spring 434 and thereby key S is locked.

Now in order to print the sum of the totals accumulat'edrin the addingtotalizer group l-9 the adding totalizer selector lever A1 is broughtback to its position of rest and the lever Su is moved into the positionRe-setting. Thereby the levers A are locked in position of rest by thearms 384 and .402. The amount keys l0 and totalizer selector keys. I02.are blocked by the slides 31.5.. The keys M and S11. are blocked by theslide 353' and the key Sr released by slot 312. Therefore the'operatormust depress the key Sr to. take thetotal from the master totalizer.After the total has been taken from the group of adding totalizers I'9',there follows the taking of the total. from. the. group 13-0, in themanner just described. Attentionis again called to the fact that theparts 409--43| (Fig. 3) and 443-446 (Fig. 4)" are provided for eachadding totalizer selector lever A.

After the: total is again taken from the master totalizer the lever S10is again returned to its position of rest; The locking slide 353 ispulled up by the spring. 365, so that the keys M and Su are againreleased, while the key Sr is blocked. The blocking ofthe keys M and Suby the slide 438- ha-d'already been removed by the depression of the.key Sir, d'ue'to the pin I12 acting upon the inclined surface of theslide and pushing it.

down. I

It is evident that the describeddevice prevents any false operation bythe operator in totalizing.

I claim:

A machine of the class described, comprising a set of totalizers, meansfor taking totals from said totalizers, manually operated setting meansfor selecting said totalizers for engagement with said total takingmeans, blocking means limiting the change of said setting means aftereach machine operation to the selection of one particular totalizer ofsaid set, and means progressing saidv blocking means at each machineoperation to require a sequential selection of said total-izers.

2- A machine of. the class described, comprising a plurality oftotalizers;. means. for taking totals from. said? totalizers; settingmeans for selecting said totalizers for engagement with said totaltaking means, comprising a manipulative element adjustable to differentpositions corresponding to the respective totalizers; means blockingmovement of said element beyond the distance between. two adjacentpositions; and means for advancing the field of control of said blockingmeans at each machine operation.

3. A machine of the class described, comprising a plurality oftotalizers; means for taking totals from said totalizers; setting meansfor selecting said totalizers for engagement with said total takingmeans; comprising a manipulative element adjustable to differentpositions corresponding to the respective totalizers; a pawl on saidelement; means cooperating with said pawl to limit the movement of saidelement to the distance between two adjacent positions; and means foradvancing the field of control of said limiting means at each machineoperation.

4. A machine of the class described, comprising a plurality oftotalizers; means for taking totals from said totalizers; setting meansfor selecting said totalizers for engagement with said total takingmeans, comprising a manipulative element adjustable to differentpositions corresponding to the respective totalizers; a pawl on saidelement having a limited movement with respect to said element; a pairof independently movable rack bars lying side by side and havingrelatively offset notches, said pawl having a projection cooperatingwith said notches in the manner of an escapement; and means for movingsaid rack bars in each machine operation to allow said pawl to advanceand permit a further movement of said setting element.

5. A machine of the class described, comprising a plurality oftotalizers; means for taking totals from said totalizers; setting meansfor selecting said totalizers for engagement with said total takingmeans, comprising a manipulative element adjustable to differentpositions corresponding to the respective totalizers; a pawl on saidelement having a limited movement with respect to said element; a pairof independently movable rack bars lying side by side and havingrelatively offset notches, said pawl having a projection cooperatingwith said notches in the manner of an escapement; and means for movingsaid rack bars successively clear of said projection once in eachmachine operation to permit said projection to advance by steps to thenext notches of said rack bars.

A machine of the class described, compris ing a group of addingtotalizers; a master totalizer; means for transferring totals from saidadding totalizers to said master totalizer; means for taking totals fromsaid master totalizer; first setting means for setting the machine totransfer totals from said adding totalizers to said master totalizer,including selecting means for the individual engagement of said addingtotalizers with said transferring means; second setting means forsetting the machine to take the total from said master totalizer;interblocking means between said setting means, comprising meanspreventing operation of said second setting means when said firstsetting means is displaced from normal position; and means blocking saidselecting means against operation in other than a predeterminedsequence.

7. A machine of the class described, comprising a group of addingtotalizers; a master totalizer; means for transferring totals from saidadding totalizers to said master totalizer; means for taking totals fromsaid master totalizer; first setting means for setting the machine totransfer totals from said adding totalizers to said master totalizer,including selecting means for the individual engagement of said addingtotalizers with said transferring means; second setting means forsetting the machine to take the total from said master totalizer;interblocking means between said Setting means, comprising meanspreventing operation of said second setting means when said firstsetting means is displaced from normal position; means for blocking saidfirst setting means; and means operated by the driving mechanism of themachine and controlled by the setting of said selecting means to thelast adding totalizer, for moving said last blocking means to operativeposition.

8. A machine of the class described, comprising a group of addingtotalizers; a master totalizer; means for transferring totals from saidadding totalizers to said master totalizer; means for taking totals fromsaid master totalizer; first setting means for setting the machine totransfer totals from said adding totalizers to said master totalizer,including selecting means for the individual engagement of said addingtotalizers with said transferring means and a machine release key;second setting means, including a machine release key, for setting themachine to take the total from said master totalizer; means for blockingsaid selecting means against operation in other than a predeterminedsequence; means for blocking said first machine release key; meansoperated by the driving mechanism of the machine and controlled by thesetting of said selecting means to the last adding totalizer, for movingsaid last blocking means to operative position; and means whereby saidlast blocking means is restored to inoperative position by operation ofsaid second machine release key.

9. A machine of the class described, comprising a plurality oftotalizers, means for taking totals from said totalizers, setting meansfor selecting said totalizers for engagement with said total takingmeans, means operating in the manner of an escapement mechanism forconfining the movement of said selecting means to a step by stepmovement from one position to the next after each machine operation,said last means being adapted normally to prevent retrograde movement ofsaid selecting means, and means controlled by the setting of saidselecting means to one of said totalizers for releasing said selectingmeans for restoration to starting position.

10. A machine of the class described, comprising a group of addingtotalizers; a master totalizer; means for adding amounts in said addingtotalizers; means for transferring totals from said adding totalizers tosaid master totalizer; means for taking totals from said mastertotalizer; a first setting means to set the machine for adding amountsto said adding totalizers; a second setting means to set the machine fortransferring totals from said adding totalizers to said mastertotalizer, including selecting means for said adding totalizers; a thirdsetting means to set the machine to take the total from said mastertotalizer; inter-blocking means between said setting means, comprisingmeans preventing operation of said first and third setting means whensaid second setting means is displaced from its position of rest; andmeans positively blocking said selecting means against operation inother than a predetermined sequence including said entire group ofadding totalizers.

11. A machine of the class described, comprising a group of addingtotalizers; a master totalizer; means for adding amounts in said addingtotalizers; means for transferring totals from said adding totalizers tosaid master totalizer; means for taking totals from said mastertotalizer; a first setting means to set the machine for adding amountsto said adding totalizers; a second setting means to set the machine fortransferring totals from said adding totalizers to said mastertotalizer, including selecting means for said adding totalizers; a thirdsetting means to set the machine to take the total from said mastertotalizer; inter-blocking means between said setting means, comprisingmeans preventing operation of said first and third setting means whensaid second setting means is displaced from its position of rest; meansconfining said selecting means to a definite sequence of selectionsincluding said entire group of adding totalizers, said confining meansbeing adapted to prevent the return of said selecting means to startingposition before said sequence is finished; mechanism for rendering saidconfining means inoperative, said mechanism being prepared for operationby movement of said selecting means to select the last adding totalizerof said sequence; and means moved by the driving mechanism of themachine for completing the operation of said mechanism after it has beenprepared.

12. A machine of the class described, comprising a group of addingtotalizers; a master totalizer; means for adding amounts in said addingtotalizers; means for transferring totals from said adding totalizers tosaid master totalizer; means for taking totals from said mastertotalizer, a first setting means to set the machine for adding amountsto said adding totalizers; a second setting means to set the machine fortransferring r totals from said adding totalizers to said mastertotalizer, including selecting means for said adding totalizers; a thirdsetting means to set the machine to take the total from said mastertotalizer; inter-blocking means between said setting means, comprisingmeans preventing operation of said first and third setting means whensaid second setting means is displaced from its position of rest; meansconfining said selecting means to a definite sequence of selectionsincluding said entrire group of adding totalizers, said confining meansbeing adapted to prevent the return of said selecting means to startingposition before said sequence is finished; mechaanism for rendering saidconfining means inoperative, said mechanism being prepared for operationby movement of said selecting means to select the last adding totalizerof said sequence; means moved by the driving mechanism of the machinefor completing the operation of said mechanism after it has beenprepared, said last means comprising a cam having a movement during eachoperation of the machine, and a lever adapted to be moved into the pathof said cam by said selecting means, said cam in its position of restbeing adapted to hold said lever in position to render said confiningmeans inoperative until the next operation of the machine.

13.A machine of the class described, comprising a group of addingtotalizers; a master totalizer; means for adding amounts in said addingtotalizers; means for transferring totals from said adding totalizers tosaid master totalizer; means for taking totals from said mastertotalizer; a first setting means to set the machine for adding amountsto said adding totalizers; a second setting means to set the machine fortransferring totals from said adding totalizers to said mastertotalizer, including selecting means for said adding totalizers; a thirdsetting means to set the machine to take the total from said mastertotalizer; interblocking means between said setting means, comprisingmeans preventing operation of said first and third setting means whensaid second setting means is displaced from its position of rest; meansconfining said selecting means to a definite sequence of selectionsincluding said entire group of adding totalizers, said confining meansbeing adapted to prevent the return of said selecting means to startingposition before said sequence is finished; mechanism for rendering saidconfining means inoperative, said mechanism being prepared for operationby movement of said selecting means to select the last adding totalizerof said sequence; means moved by the driving mechanism of the machinefor completing the operation of said mechanism after it has beenprepared, locking means for said first and second setting means, andmeans set in operation by said selecting means on selecting the lasttotalizer of said sequence for cooking said locking means, said lockingmeans being restrained from moving from cooked to locking position bysaid setting means in set position and released upon movement of saidsetting means to position of rest.

14. A machine of the class described, comprising a group of addingtotalizers; a master totalizer; means for adding amounts in said addingtotalizers; means for transferring totals from said adding totalizers tosaid master totalizer; means for taking totals from said mastertotalizer; a first setting means to set the machine for adding amountsto said adding totalizers; a secondsettin-g means to set the machine fortransferring totals from said adding totalizers to said mastertotalizer, including selecting means for said adding totalizers; a thirdsetting means to set the machine to take the total from said mastertotalizer; inter-blocking means between said setting means, comprisingmeans preventing operation of said first and third setting means whensaid second setting means is displaced from its position or" rest; meansconfining said selecting means to a definite sequence of selectionsincluding said entire group of adding totalizers, said confining meansbeing adapted to prevent the return of said selecting means to startingposition before said sequence is finished; mechanism for rendering saidconfining means inoperative, said mechanism being prepared for operationby movement of said selecting means to select the last adding totalizerof said sequence; means moved by the driving mechanism of the machinefor completing the operation of said mechanism after it has beenprepared, locking means for said first and second setting means, meansset in operation by said selecting means on selecting the last totalizerof said sequence for cocking said locking means, said locking meansbeing restrained from moving from cocked to locking position by saidsetting means in set position and released upon movement of said settingmeans to position of rest, and means whereby said third setting meansrestores said locking means to inoperative position.

ALBERT KLAAR.

